21000485079

素因数分解:

$3^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{1051549}}^1$

素因数の和:1051879

約数の個数: 24

約数和(自身を含む): 34776861600

約数和(自身を除く): 13776376521

約数列:

[1, 3, 7, 9, 21, 63, 317, 951, 2219, 2853, 6657, 19971, 1051549, 3154647, 7360843, 9463941, 22082529, 66247587, 333341033, 1000023099, 2333387231, 3000069297, 7000161693, 21000485079]

約数ペア:

[(1, 21000485079), (3, 7000161693), (7, 3000069297), (9, 2333387231), (21, 1000023099), (63, 333341033), (317, 66247587), (951, 22082529), (2219, 9463941), (2853, 7360843), (6657, 3154647), (19971, 1051549)]